How should a developer implement the callouts?

A Visualforce page needs to make a callout to get biding information and tax information from two different REST endpoints. The information needs to be Displayed to the user at the same time and the return value of the billing information contains the input for the tax information callout. Each endpoint might take up to two minutes to process.

How should a developer implement the callouts?
A . A Continuation for both the billing callout and the tax callout
B . An HTTP REST call out for both the billing callout and the tax callout
C . An HTTP REST callout for the billing callout and a Continuation for the tax callout
D . A Continuation for the billing callout and an HTTP REST callout for the tax callout

View Answer

Answer: A